As for why Sprite and other basic things gave her some interesting things, it was because they were common accessible plants and yet they were never maximized before.
Because of the lack of scientific knowledge here, and the lack of the time, effort, and mind to innovate (especially with the constant mobs and wars), even accessible plants had not been combined and experimented on.
In a sense, she was lucky to have done what she had done back then, and she patted Tori lovingly in her mind because of it.
To create new potions, one had to be familiar with the formulas and have deep knowledge of potions in general, so it was more difficult for others to inherit. They simply might not have the ability for it.
Inheritances in Toolmaking worked differently.
For those who had awakened the profession, they would describe the process as receiving a pattern and a stamp, which was ultimately the array combination needed for that tool.
